Extended Surge Protection For Substation Instrumentation; Wiring Schematic For Extended Surge Suppression - Electro Industries Shark 200 Installation & Operation Manual

4.9: Extended Surge Protection for Substation Instrumentation

EIG offers a surge protector for applications with harsh electrical conditions. The
surge protector is EI-MSB10-400 and it can be ordered from EIG's webstore:
www.electroind.com/store.
The EI-MSB10-400 surge protector is designed to protect sensitive equipment from
the damaging effects of lightning strikes and/or industrial switching surges in single
phase AC networks up to 320 V AC (L-N / L-G), and DC networks up to 400 V DC. The
protectors are ideal for metering systems, RTUs, PLCs and protective relays. They are
used specifically to extend the life and increase reliability of critical control apparatus.
For best protection, it is recommended to use two protectors. These will protect the
instrument on the line inputs and on the reference input to ground. The protectors
have LED indication to annunciate when the protection has worn out.
The EI-MSB10-400 is connected by wires in parallel with the network to be protected.
It can be easily mounted on a wall or plate with self-adhesive tape.
See the wiring diagram below.
PE
L (+)
PE
N (-)
L (+)
BREAKER
N (-)
BREAKER
Figure 4.5: Wiring Schematic for Extended Surge Suppression
Electro Industries/GaugeTech
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
The Leader In Power Monitoring and Smart Grid Solutions
L/N L/N L/N
L/N L/N L/N
EI-MSB10-400 EI-MSB10-400
EI-MSB10-400 EI-MSB10-400
Suitable for Substation Instrumentation
4: Electrical Installation
FUSE
FUSE
FUSE
FUSE
L/N
L/N
#
Doc E149701
GND
L (+)
GND
N (-)
L (+)
Substation
Vref
N (-)
Instrumentatio
Substation
Va
Vref
Instrumentation
Va
Vb
Vb
Vc
Vc
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